Design and Experiment of Welds Defect Detection System Based on ACFM

WANG Yuxin; ZHENG Yueshan; GAO Yu; YUAN xinan; MA Yingbing; LI Wei

doi:10.7512/j.issn.1001-2303.2024.05.20

Nondestructive Testing & Quality Assurance | Views : 0 下载量: 1 CSCD: 0

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Design and Experiment of Welds Defect Detection System Based on ACFM
Vol. 54, Issue 5, Pages: 135-141(2024)
Published： 25 May 2024 ，
DOI： 10.7512/j.issn.1001-2303.2024.05.20

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王宇欣，郑岳山，高宇，等.基于ACFM的焊缝缺陷检测系统设计和试验［J］.电焊机，2024，54（5）：135-141.

WANG Yuxin, ZHENG Yueshan, GAO Yu, et al.Design and Experiment of Welds Defect Detection System Based on ACFM[J].Electric Welding Machine, 2024, 54(5): 135-141.
王宇欣，郑岳山，高宇，等.基于ACFM的焊缝缺陷检测系统设计和试验［J］.电焊机，2024，54（5）：135-141. DOI： 10.7512/j.issn.1001-2303.2024.05.20.

WANG Yuxin, ZHENG Yueshan, GAO Yu, et al.Design and Experiment of Welds Defect Detection System Based on ACFM[J].Electric Welding Machine, 2024, 54(5): 135-141. DOI： 10.7512/j.issn.1001-2303.2024.05.20.

摘要

针对CNFC-3GS新燃料运输容器载荷试验前后吊耳角焊缝的非接触式（带涂层）表面检测需求，研发了一套交流电磁场（ACFM）检测系统和工艺，设计了高灵敏度的单阵列笔式探头，并编写了梯度算法软件，以提高对微小缺陷的检测能力。通过灵敏度试块、考试试块、模拟试块试验，验证了ACFM技术在表面和近表面缺陷检测方面的有效性，通过对不同试块的检测，结果表明该ACFM系统能够有效检出表面和近表面

≥1 mm的线形缺陷和

≥1 mm的圆形缺陷，打磨可以提高其检出能力。该ACFM检测系统稳定可靠，能够实现容器吊耳焊缝表面缺陷的快速有效检出，并初步判断缺陷的位置和大小，可以为铁磁性材料及焊缝的服役安全评价提供技术支撑。

Abstract

In response to the demand for non-contact (coated) surface detection of the fillet welds of the lifting lugs before and after the load test of the CNFC-3GS new fuel transport vessel

China Nuclear Power Engineering Co.

Ltd. led the development of a set of highly sensitive ACFM system and process

including a written array probe and gradient algorithm software

and tested various test blocks

and the test results were compared and analyzed. The test results showed that ACFM technology can realize the rapid and effective detection of the surface defects of the hanging lug weld of the container

and can initially judged the location and size of the defects. ACFM technology could detect circular defects with a diameter of 1mm and linear defects with a length of 1 mm

and grinding could improve its detection ability. This paper can provide technical support for service safety evaluation of ferromagnetic materials and welds.

关键词

ACFM技术CNFC-3GS交流电磁场检测焊缝检测

Keywords

ACFMCNFC-3GSalternating current field measurementweld inspection

references

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